<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <title>菜鸟教程(runoob.com)</title>
    <style>
        body {
            background-color: #d0e4fe;
        }

        h1 {
            color: orange;
            text-align: center;
        }

        p {
            font-family: "Times New Roman";
            font-size: 20px;
        }
    </style>
</head>

<body>

    <h1>CSS 实例!</h1>
    <p>这是一个段落。</p>

</body>

</html>